/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.config.spring.parsers.specific.properties;

import org.mule.runtime.config.spring.parsers.AbstractMuleBeanDefinitionParser;
import org.mule.runtime.config.spring.parsers.assembly.MapEntryCombiner;
import org.mule.runtime.config.spring.parsers.collection.ChildSingletonMapDefinitionParser;
import org.mule.runtime.config.spring.parsers.delegate.AbstractSingleParentFamilyDefinitionParser;
import org.mule.runtime.config.spring.parsers.processors.AddAttribute;

/**
 * This constructs a nested map - keyed by "mapKey" - and then adds an entry in that named from the attribute "keyAttribute".
 * Child elements can then set a value (or values, if it is a collection) on
 * {@link org.mule.runtime.config.spring.parsers.assembly.MapEntryCombiner#VALUE}
 */
public class ElementInNestedMapDefinitionParser extends AbstractSingleParentFamilyDefinitionParser {

  public ElementInNestedMapDefinitionParser(String mapSetter, String mapKey, String keyAttribute) {
    // children (parameters) want to append to the inner map, not the outer one
    setReturnFirstResult(false);
    addDelegate(new ChildSingletonMapDefinitionParser(mapSetter))
        .registerPreProcessor(new AddAttribute(MapEntryCombiner.KEY, mapKey)).addCollection(mapSetter).setIgnoredDefault(true)
        .removeIgnored(MapEntryCombiner.KEY).addIgnored(AbstractMuleBeanDefinitionParser.ATTRIBUTE_NAME);
    addChildDelegate(new ChildSingletonMapDefinitionParser(MapEntryCombiner.VALUE)).addAlias(keyAttribute, MapEntryCombiner.KEY)
        .addCollection(MapEntryCombiner.VALUE).addIgnored(AbstractMuleBeanDefinitionParser.ATTRIBUTE_NAME);
  }

}
